Why do children get Kawasaki disease?

Written by Li Jiao Yan
Neonatology
Updated on September 06, 2024
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Kawasaki disease has an unclear pathogenesis. It is speculated that it may be related to infections by microorganisms or other pathogens, familial genetic susceptibility, or autoimmune functions. Currently, the entire medical history is unclear, and there is no specific epidemiology identified for the onset of the disease; it can occur in any of the four seasons. The disease primarily affects infants and young children, with about 80% of cases occurring in children under five years of age. The ratio of male to female incidence is approximately 1.5:1. Thus, Kawasaki disease is most commonly seen in infants and young children. Currently, there is no definitive explanation for the mechanism of the disease.

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Written by Li Jiao Yan
Neonatology
1min home-news-image

Why do children get Kawasaki disease?

Kawasaki disease has an unclear pathogenesis. It is speculated that it may be related to infections by microorganisms or other pathogens, familial genetic susceptibility, or autoimmune functions. Currently, the entire medical history is unclear, and there is no specific epidemiology identified for the onset of the disease; it can occur in any of the four seasons. The disease primarily affects infants and young children, with about 80% of cases occurring in children under five years of age. The ratio of male to female incidence is approximately 1.5:1. Thus, Kawasaki disease is most commonly seen in infants and young children. Currently, there is no definitive explanation for the mechanism of the disease.

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Written by Li Jiao Yan
Neonatology
1min 45sec home-news-image

Is Kawasaki disease easy to treat?

Kawasaki disease, also known as mucocutaneous lymph node syndrome, is a self-limiting disease but is an acute systemic vasculitis commonly seen in infants and children under the age of 5. The primary clinical manifestations include non-suppurative cervical lymphadenopathy, oral mucosal lesions, conjunctival congestion, prolonged fever, polymorphous rash, and hard swelling of the hands and feet with fingertip desquamation. Cardiovascular damage is the most severe complication of Kawasaki disease and can lead to coronary artery aneurysms and coronary artery dilation. If Kawasaki disease is not treated promptly, the incidence of developing coronary artery aneurysms is 15%-25%, making Kawasaki disease one of the most common causes of acquired heart disease in infants and young children. Therefore, timely treatment of Kawasaki disease is crucial, generally involving anti-inflammatory treatment, immune support, and symptomatic management. If there is no concomitant coronary artery damage, treatment involves symptomatic management. If there is coronary artery damage, the treatment duration will be longer and regular follow-up is necessary. The course of the disease can extend over months or even years, thus treatment of Kawasaki disease needs to be tailored based on the individual's condition and clinical symptoms.

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Written by Li Jiao Yan
Neonatology
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Kawasaki disease peeling symptoms

Kawasaki disease is a disease with unclear etiology and unclear pathogenesis of the autoimmune system. Its main pathological change is systemic vasculitis, commonly occurring in the coronary arteries. At the onset, symptoms in the hands and feet include stiff swelling and erythema during the acute phase. In the recovery phase, membranous peeling occurs at the junction of the skin and the nail base of fingers and toes, and there are transverse grooves in the nails. In severe cases, the nails of the fingers and toes may also fall off. Additionally, its skin manifestations include polymorphic skin plaques and scarlet fever-like rashes, which commonly appear in the first week of the disease, with redness and peeling of the skin around the anus.

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Written by Li Jiao Yan
Neonatology
1min 50sec home-news-image

Is Kawasaki disease serious?

Kawasaki disease is an etiologically unclear disease with a not well-understood pathogenesis. The principal pathological change involves inflammatory changes in the systemic blood vessels, which can affect the coronary arteries and lead to coronary artery aneurysms and dilation. Kawasaki disease is self-limiting, and most cases resolve well, with recurrences seen in 1-2% of cases. For patients without coronary artery lesions, comprehensive examinations are required 1 month, 3 months, 6 months, and 1-2 years after discharge, including physical examinations, electrocardiograms, and echocardiograms, mainly to assess the heart's condition. If not effectively treated, 15-20% may develop coronary artery aneurysms; such cases need semi-annual or annual medical check-ups. Coronary artery aneurysms often self-resolve within two years post-diagnosis, typically leaving functional abnormalities such as thickening of the vessel wall and reduced elasticity. Major artery aneurysms often do not disappear completely and can lead to thrombosis or narrowing of the vessel lumen. Kawasaki disease is one of the common causes of acquired heart disease in children; therefore, if Kawasaki disease is accompanied by severe coronary damage, it may heal well but could lead to heart disease. If it is not a severe case of Kawasaki disease, timely treatment can still result in a good recovery.

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Written by Yao Li Qin
Pediatrics
1min 16sec home-news-image

How is Kawasaki disease treated?

Kawasaki disease, also known as mucocutaneous lymph node syndrome, can cause damage to the coronary arteries in untreated children, so it is crucial to treat the disease promptly once diagnosed. This disease generally occurs sporadically or in small outbreaks and can occur in any season, predominantly affecting infants and young children. The main treatment for Kawasaki disease is aspirin, which not only reduces fever but also helps reduce coronary artery lesions. Additionally, intravenous immunoglobulin is administered; however, the use of corticosteroids in Kawasaki disease is still somewhat controversial. Other treatments mainly include antiplatelet aggregation agents such as dipyridamole, and symptomatic supportive care for the child, including fluid supplementation, heart protection, control of heart failure, and correction of arrhythmias. For severe coronary artery lesions, coronary artery bypass surgery may be required. (Please use medication under the guidance of a professional physician.)